Shoe-sole cutter.



E. CESAR.

SHOE SOLE CUTTER.

APPLICATION FILED MAY 8. 1916.

1i 1 @Q, 1 Q8. 5 Patented Dec. 26, 1916.

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aw $31G I I al'lorucu EBIVIN CESAR, 0F PONCA CITY, OKLAHOMA, ASSIGNOR T0PROGRESSIVE SHOE MAGHHTERY COMPANY, OF MINNEAPOLIS, MINNESOTA, A.CORPORATION OF MINNESOTA.

SHOE-SOLE CUTTER.

Specification of Letters Patent.

Patented Dec. 2%, rate.

Application filed May 8, 1916. Serial No. 96,176.

To all whom it may concern:

Be it known that I, ERVIN CESAR, a citizen of the United States,residing at Ponca City, in the county of Kay, State of Okla homa, haveinvented certain .new and useful Improvements in Shoe-Sole Cutters; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to a shoe sole cutter.

An object of the invention resides invthe provision of an improvedmachine for cutting leather or rubber into the configuration of a soleof a shoe and automatically feeding the said leather or rubber duringthe cutting operation.

, With these and other objects in view, such as will appear as mydescription progresses, my invention comprises the combination andarrangement of parts as set forth in and falling within the scope of theappended claims.

In the drawing: Figure lis a side elevation of a machine embodying myinvention; Fig. 2 is an end elevation looking at the cutters; Fig. 3 isan enlarged detail of the cutters, and Fig. 4 is a detail showing themanner in which the disks cooperate with the material to cut the sameand to feed it.

In the drawing, I have illustrated a standard 1 from which project atright angles a pair of hollow arms 2 and 3 Whichare disposed in spacedrelation to each other and the lower 3 of which is provided with a worksupport 4. Extending through the arms 2 and 3 and rotatable therein areshafts 5 and I 6. In order-that these shafts may be rotated in oppositedirections I have secured to the shaft 6 a crank handle 7 which islocated adjacent to the standard 1 and a gear 8 which meshes with asimilar gear 9 on'the shaft 5. Thus by means of the handle these shaftsmay be actuated, o

In order that a piece of leather or rubber may be cut into theconfiguration of a sole, 1 have provided a pair of cutting disks 10 and11 which are secured to the ends of the shafts 5 and 6 respectively bysuitable attachin means 13. One face of the disk 10 is entire y fiat andoverlaps and contacts with a flat face 16 of the disk 11, the flat faceon the disk 10 being indic ated'by the character 14. The opposite faceof the disk 10 is beveled as clearly illustrated in Fig. l of thedrawing and is provided with a plurality of ribs 15 which radiate fromthe center of the disk but terminate short of the center and also inspaced relation to the edge of the disk so that the said edge isentirely circular and unbroken. The peripheral face of the disk 11extends at right angles to the face 16 and it is provided with aplurality of serrations which terminate short of theface '16 leaving anentirely circular and unbroken edge which cooperates with the circularand unbroken edge of the disk 10. It will be seen with this constructionthat as the leather or rubber is cut the under face of the same will beengaged by the serrations l7 and one'edge of the cut portion will beengaged by the ribs 15 and as the disks are turning inoppositedirections the material will be fed therebetween. It is to benoted in connection with this construction that while the disks, becauseof the serrations and ribs, feed the material the material is cut bycooperating circular and unbroken edges.

In connection with the operation of the cutters on the Work attention isdirected particularly to Fig. 4 in which the relation of the disks andwork' is clearly illustrated.

' It is to be noted that the serrations 17 on the disk 11 engage theunderface ofthe leather which is indicated by the character L, at 18. Itis to be further noted that the ribs 15 on the outer face of the disk 10engage the edge 19 of the cut portion of the leather, this edge beingforced into engagement within the ribs by the remaining uncut portion'ofthe leather or by the operator. This particular arrangement ofserrations andribs is advantageous in that the unbroken edges of thedisks perform a cutting function alone while the serrations and ribsperform a feeding function alone and the particular construction of thedisks is necessary as the successful cutting and feeding of the'leather.

While I have illustrated and described, a particular embodiment of myinvention, 1t

- has merely been for the sake of convenience numerous changes may bemade in the de tails of construction without departing from tatingthedisks in opposite directions.

2. 1 in a leather working machine, the combination with a support, of apair of cooperating rotary disks having circular cut-.

- ting edges, one of said disks having a bevelbination with a sup ort,of a operating rotary dis ed serrated face "remote from the other diskand the other of said disks having a serrated peripheral face extendingat right angles to the face thereof which is adjacent to the other diskand means for rotating the disks in opposite directions.

- 3: In a leather working machine, the com, pair of" co having circularcutting edges, one ofsaiddisks' having a beveled serrated face remotefrom the other disk and theother of said diskshaving a serratedperipheral face extendinguin angular rela- -'ch 18 athacent to tion tothe face thereof,

the other disk and means for rotating the the combination of a circularcutter having 'a smooth face above cooperating with a circular cutterhaving a smooth face below, each cutter being corrugated so as to feedthe leather or vrubber between the cutting edges. I

- 5. In a leather working machine, the combination with'a support, of a'pair of cooperating'rotary disks, which disks overlap and have flatcontacting faces, the adjacent edges of the disks being circular andunbroken, one of said disks having a peripheral face extending at rightangles to the aforemen ioned face thereof and provided with serrationswhich terminate short of said aforementioned face and the other of saiddisks-having a plurality of radial ribs on the face opposite to its fiatface, which ribsterminate short of the edge of the disk i and means forrotating thedisks in opposite 1 directions.

In testimony whereof, I an: my signa ture, in the presence, of twowitnesses.-

' ERVIN CESAR.

Witnesses: i

' Lns'rnn A. Maris,

' F. K: SAnmzN-r.

